P reg Fiesta 1.25. Just changed the engine. Got the new one running tonight and it sounds really nice but the idle speed is too low. The engine sounds sweet on a little throttle but too low when you release the throttle.

It got too dark to spend too much time on it tonight so I thought I'd come back and ask the experts where I should check next.

Sorted now. One of the vacuum pipes on the throttle housing had a blanking plug on and on the new engine I'd missed this off. Running sweet now, but has an overheating issue which is the subject of a new post